attribute_container: Fix typo

The 't' in "function" was missing, this patch fixes this typo:
s/funcion/function/g
Signed-off-by: NXiubo Li <lixiubo@cmss.chinamobile.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/attribute_container.c

@@ -243,7 +243,7 @@ attribute_container_remove_device(struct device *dev,
  * @dev:  The generic device to run the trigger for
  * @fn	  the function to execute for each classdev.
  *
- * This funcion is for executing a trigger when you need to know both
+ * This function is for executing a trigger when you need to know both
  * the container and the classdev.  If you only care about the
  * container, then use attribute_container_trigger() instead.
  */